certain vintage. A true christmas classic. So many families will obviously spend time today watching television, as you are right now. When we're done, I'm sure you're going to find it somewhere on the dial. "A christmas story." One of the true classics today. It seems to get more popular with each passing year. And this year, the movie is celebrating a special anniversary. And to help celebrate it, we got some of the cast members back together for a reunion. Take a look. What do you get when you take one bunny costume? Add a pair of mean-spirited elves. Come on. Reporter: Throw in a triple-dog dare. Fold in one epic quest for a red ryder b.B. Gun. You'll shoot your eye out, kid. Reporter: The answer, movie magic, in the form of "a christmas story." One of the most beloved holiday classics of all-time. This year, the film turns 30. And so, to mark the occasion, "gma" sat down with four of the original cast members. Ian patrella, a.K.A. Randy parker. Scott schwartz. A.K.A. Glick. Zach ward. A.K.A. Scutt far gus. And grover dill. The men attribute the movie's tremendous staying power to its fundamental message. It's all about family. And family values. It was assured reality that grandparents, parents and children all enjoy together. Reporter: Fun facts, the snow and the film's theme in cleveland was really potato's. Ian's audition to get the role of randy, was just sitting down to an impromptu meal. Okay, eat like a piggy. Okay, you're randy. Reporter: And what of that iconic tongue scene? It was a real pole. Over it, they put a plastic pole, with a little hole they put in it, with a suction tube and a vacuum. And stuck, we were. Reporter: Most films diminishes, in "a christmas story's" case, it soars. There's christmas story conventions. "Christmas story" merchandise. Leg lamp anyone? Are you a bunny? Reporter: And "a christmas story" musical, now in its second hit here in new york. While in cleveland, at the house where it all began, there are tours. The story value keeps on connecting to every generation. Kind of awesome. He's so bundled up, he can't put his arms down. Sarina's afternoon today, for sure. America, we want to hear from you. We triple-dog dare you, in fact. Logon to goodmorningamerica.Com on yahoo! Tell us your favorite holiday movie of all-time. We'll have the results.

This transcript has been automatically generated and may not be 100% accurate.

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